1 // slew.cxx -- the "slew" flight model
3 // Written by Curtis Olson, started May 1997.
5 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <FDM/flight.hxx>
29 #include <Aircraft/aircraft.hxx>
30 #include <Controls/controls.hxx>
31 #include <Include/fg_constants.h>
34 // reset flight params to a specific position
35 void fgSlewInit(double pos_x, double pos_y, double pos_z, double heading) {
38 f = current_aircraft.fdm_state;
62 // update position based on inputs, positions, velocities, etc.
63 void fgSlewUpdate( void ) {
67 f = current_aircraft.fdm_state;
68 c = current_aircraft.controls;
70 /* f->Psi += ( c->aileron / 8 );
71 if ( f->Psi > FG_2PI ) {
73 } else if ( f->Psi < 0 ) {
79 f->pos_x = f->pos_x + (cos(f->Psi) * f->vel_x);
80 f->pos_y = f->pos_y + (sin(f->Psi) * f->vel_x); */